Anchor Health's Sinus Support ingredients are:

• Vitamin A
  Besides its popular use in ensuring healthy eyes and vision, vitamin A is also necessary for the immune system and for our body's ability to resist infection.
  
  Vitamin A also supports the health of our mucus membranes, an important part of the sinus cavity.
  
  
• Zinc
  Every cell in our body needs this essential trace mineral. Zinc has a surprising number of health benefits - amongst them, zinc promotes a stronger immune system and can help ward off, or lessen the duration and severity of colds and flu.
  
  Unfortunately, a large number of adults in the United States do not get enough zinc from their diet - so be sure to get enough by taking supplements.
  
  
• Arabinogalactan
  Arabinogalactan is a water-soluble polysaccharide derived from the wood of the Western larch plant. It has an immunomodulating effect, and can boost the immune system to resist sinus problems.
  
  
• Bromelain
  Bromelain is a group of proteolytic or protein-digesting enzyme derived from pineapple. Its medicinal uses include aiding digestion, preventing inflammation, and speeding up healing. Studies have also suggested that bromelain may be beneficial for treating sinusitis and allergies.
  
  
• Fenugreek Seed
  Fenugreek has a long history of use as medicinal plant in Europe and Asia. It is used to treat various ailments, including coughs, cold and flu.
  
  
• Quercetin
  Quercetin is a flavonoid with beneficial antioxidant properties, found in various plants. As an antioxidant, quercetin can seek out and neutralize harmful free-radicals molecules that can damage cells and tissues in our body.
  
  Taken together with vitamin C, quercetin can help treat allergy and other sinus problems.
  
  
• Thyme
  This popular herb dates back to the middle ages! As an herbal remedy, it is commonly used to treat inflamed sinuses, nose and throat.
  
  
• Oregon Grape Root
  Oregon grape root, rich in berberine - a plant alkaloid with antimicrobial properties, is used as an herbal immune booster to help our body resist infection. Moreover, oregon grape root has a mucous membrane trophorestorative effect - in other words, it protects and nourishes the mucous membrane in our sinus.
  
  
• Osha Root
  Osha root is a traditional medicine used to treat viral infections, heal coughs, sore throat and other lung conditions.
  
  

Select Scientific References

• Hulisz D. Efficacy of zinc against common cold viruses: an overview. J Am Pharm Assoc 2004; 44(5):594-603.
• Kim LS et al. Immunological activity of larch arabinogalactan and echinacea: a preliminary, randomized, double-blind, placebo-controlled trial. Altern Med Rev 2002; 7(2):138-149.
• Maurer HR. Bromelain: biochemistry, pharmacology and medical use. Cell Mol Life Sci 2001; 58(9):1234-45.
• Basch E et al. Therapeutic applications of fenugreek. Altern Med Rev 2003; 8(1):20-7.